CSEMP assessment of CB52 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 170.93 | 172.43 | -82.47 | 164.93 | | | |
| linear | 2 | 172.28 | 175.19 | -82.14 | 164.28 | 0.655 | 1 | 0.4182 |
| smooth (df = 2) | 3 | 174.27 | 179.27 | -82.14 | 164.27 | 0.004 | 1 | 0.9509 |
| smooth (df = 3) | 4 | 176.24 | 184.24 | -82.12 | 164.24 | 0.033 | 1 | 0.8566 |
| smooth (df = 4) | 5 | 177.44 | 189.69 | -81.72 | 163.44 | 0.799 | 1 | 0.3714 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | -0.5225 | -0.3004 | 0.22214 | 0.27229 | 0.816 | 0.4293 |
| last 20 years | 1999 | 2017 | -0.5225 | -0.3004 | 0.22214 | 0.27229 | 0.816 | 0.4293 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.7405 | 0.1200 | -1.8199 | 0.1405 | -12.953 | 1.0000 |
| EAC | 0.7405 | 2.7000 | 1.2936 | 0.1405 | 9.208 | <0.0001 |
Raw data with supporting information
__sdmn_cb52_au.jpg "Raw data with supporting information for assessment of CB52 in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_cb52_da.jpg "Raw data with assessment of CB52 in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_cb52_as.jpg "Assessment plot for CB52 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB52 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB52 in sediment at inner (Firth of Clyde)")
Related pages
